Ultrasonic 3D Position Estimation Using a Single Base Station

Abstract. In indoor context awareness applications the location of people, devices or objects is often required. Ultrasound technology enables high resolution indoor position measurements. A disadvantage of stateof-the-art ultrasonic systems is that several base stations are required to estimate 3D position. Since fewer base stations leads to lower cost and easier setup, a novel method is presented that requires just one base station. The method uses information from acoustic reflections in a room, and estimates 3D positions using an acoustic room-model. The method has been implemented, and verified within an empty room. It can be concluded that ultrasonic reflection data provides useful clues about the 3D position of a device.

• Type: Conference
• Year: 2003
• Where: EUSAI
• Authors: Esko O. Dijk, Kees van Berkel, Ronald M. Aarts, Evert van Loenen
• Keywords: Base Station, EUSAI 2003, Fewer Base Stations, Indoor Position Measurements